/// <summary>
/// Coroutine for "continuous" random containers that alternates between two sources to crossfade clips for continuous playlist Looping.
/// </summary>
/// <param name="audioContainer">The audio container.</param>
/// <param name="activeEvent">The persistent reference to the event as long as it is playing.</param>
/// <param name="waitTime">The time in seconds to wait before switching AudioSources for crossfading.</param>
/// <returns>The coroutine.</returns>
private IEnumerator ContinueRandomContainerCoroutine(AudioContainer audioContainer, ActiveEvent activeEvent, float waitTime)
{
while (!activeEvent.CancelEvent)
{
yield return(new WaitForSeconds(waitTime));
audioContainer.CurrentClip = Random.Range(0, audioContainer.Sounds.Length);
UAudioClip tempClip = audioContainer.Sounds[audioContainer.CurrentClip];
// Play on primary source.
if (activeEvent.PlayingAlt)
{
activeEvent.PrimarySource.volume = 0f;
activeEvent.VolDest = activeEvent.AudioEvent.VolumeCenter;
activeEvent.AltVolDest = 0f;
activeEvent.CurrentFade = audioContainer.CrossfadeTime;
waitTime = (tempClip.Sound.length / activeEvent.PrimarySource.pitch) - audioContainer.CrossfadeTime;
PlayClipAndGetTime(tempClip, activeEvent.PrimarySource, activeEvent);
}
// Play on secondary source.
else
{
activeEvent.SecondarySource.volume = 0f;
activeEvent.AltVolDest = activeEvent.AudioEvent.VolumeCenter;
activeEvent.VolDest = 0f;
activeEvent.CurrentFade = audioContainer.CrossfadeTime;
waitTime = (tempClip.Sound.length / activeEvent.SecondarySource.pitch) - audioContainer.CrossfadeTime;
PlayClipAndGetTime(tempClip, activeEvent.SecondarySource, activeEvent);
}
activeEvent.PlayingAlt = !activeEvent.PlayingAlt;
}
}
/// <summary>
/// Play one sound from a container based on container behavior.
/// </summary>
/// <param name="currentContainer"></param>
/// <param name="activeEvent"></param>
/// <returns>The estimated ActiveTime for the clip, or InfiniteLoop if the container and/or clip are set to loop.</returns>
private float PlaySingleClip(AudioContainer currentContainer, ActiveEvent activeEvent)
{
float tempDelay = 0;
if (currentContainer.ContainerType == AudioContainerType.Random)
{
currentContainer.CurrentClip = Random.Range(0, currentContainer.Sounds.Length);
}
UAudioClip currentClip = currentContainer.Sounds[currentContainer.CurrentClip];
// Trigger sound and save the delay (in seconds) to add to the total amount of time the event will be considered active.
tempDelay = PlayClipAndGetTime(currentClip, activeEvent.PrimarySource, activeEvent);
// Ready the next clip in the series if sequence container.
if (currentContainer.ContainerType == AudioContainerType.Sequence)
{
currentContainer.CurrentClip++;
if (currentContainer.CurrentClip >= currentContainer.Sounds.Length)
{
currentContainer.CurrentClip = 0;
}
}
// Return active time based on Looping or clip time.
return(GetActiveTimeEstimate(currentClip, activeEvent, tempDelay));
}
/// <summary>
/// Play all clips in container simultaneously
/// </summary>
private float PlaySimultaneousClips(AudioContainer currentContainer, ActiveEvent activeEvent)
{
float tempDelay = 0;
float finalActiveTime = 0f;
if (currentContainer.Looping)
{
finalActiveTime = InfiniteLoop;
}
for (int i = 0; i < currentContainer.Sounds.Length; i++)
{
tempDelay = PlayClipAndGetTime(currentContainer.Sounds[i], activeEvent.PrimarySource, activeEvent);
if (finalActiveTime != InfiniteLoop)
{
float estimatedActiveTimeNeeded = GetActiveTimeEstimate(currentContainer.Sounds[i], activeEvent, tempDelay);
if (estimatedActiveTimeNeeded == InfiniteLoop || estimatedActiveTimeNeeded > finalActiveTime)
{
finalActiveTime = estimatedActiveTimeNeeded;
}
}
}
return(finalActiveTime);
}
/// <summary>
/// Play a non-continuous container.
/// </summary>
private float PlayOneOffContainer(ActiveEvent activeEvent)
{
AudioContainer currentContainer = activeEvent.AudioEvent.Container;
// Fading or Looping overrides immediate volume settings.
if (activeEvent.AudioEvent.FadeInTime == 0 && !activeEvent.AudioEvent.Container.Looping)
{
activeEvent.VolDest = activeEvent.PrimarySource.volume;
}
// Simultaneous sounds.
float clipTime = 0;
if (currentContainer.ContainerType == AudioContainerType.Simultaneous)
{
clipTime = PlaySimultaneousClips(currentContainer, activeEvent);
}
// Sequential and Random sounds.
else
{
clipTime = PlaySingleClip(currentContainer, activeEvent);
}
activeEvent.ActiveTime = clipTime;
return(clipTime);
}
/// <summary>
/// Coroutine for "continuous" sequence containers that alternates between two sources to crossfade clips for continuous playlist Looping.
/// </summary>
/// <param name="audioContainer">The audio container.</param>
/// <param name="activeEvent">The persistent reference to the event as long as it is playing.</param>
/// <param name="waitTime">The time in seconds to wait before switching AudioSources to crossfading.</param>
/// <returns>The coroutine.</returns>
private IEnumerator ContinueSequenceContainerCoroutine(AudioContainer audioContainer, ActiveEvent activeEvent, float waitTime)
{
while (!activeEvent.CancelEvent)
{
yield return(new WaitForSeconds(waitTime));
UAudioClip tempClip = audioContainer.Sounds[audioContainer.CurrentClip];
if (tempClip.Sound == null)
{
Debug.LogErrorFormat(this, "Sound clip in event \"{0}\" is null!", activeEvent.AudioEvent.Name);
waitTime = 0;
}
else
{
// Play on primary source.
if (activeEvent.PlayingAlt)
{
activeEvent.PrimarySource.volume = 0f;
activeEvent.VolDest = activeEvent.AudioEvent.VolumeCenter;
activeEvent.AltVolDest = 0f;
activeEvent.CurrentFade = audioContainer.CrossfadeTime;
waitTime = (tempClip.Sound.length / activeEvent.PrimarySource.pitch) - audioContainer.CrossfadeTime;
PlayClipAndGetTime(tempClip, activeEvent.PrimarySource, activeEvent);
}
// Play on secondary source.
else
{
activeEvent.SecondarySource.volume = 0f;
activeEvent.AltVolDest = activeEvent.AudioEvent.VolumeCenter;
activeEvent.VolDest = 0f;
activeEvent.CurrentFade = audioContainer.CrossfadeTime;
waitTime = (tempClip.Sound.length / activeEvent.SecondarySource.pitch) - audioContainer.CrossfadeTime;
PlayClipAndGetTime(tempClip, activeEvent.SecondarySource, activeEvent);
}
}
audioContainer.CurrentClip++;
if (audioContainer.CurrentClip >= audioContainer.Sounds.Length)
{
audioContainer.CurrentClip = 0;
}
activeEvent.PlayingAlt = !activeEvent.PlayingAlt;
}
}
/// <summary>
/// Choose a random sound from a container and play, calling the Looping coroutine to constantly choose new audio clips when current clip ends.
/// </summary>
/// <param name="audioContainer">The audio container.</param>
/// <param name="emitter">The emitter to use.</param>
/// <param name="activeEvent">The persistent reference to the event as long as it is playing.</param>
private void PlayContinuousRandomContainer(AudioContainer audioContainer, AudioSource emitter, ActiveEvent activeEvent)
{
audioContainer.CurrentClip = Random.Range(0, audioContainer.Sounds.Length);
UAudioClip tempClip = audioContainer.Sounds[audioContainer.CurrentClip];
activeEvent.PrimarySource.volume = 0f;
activeEvent.VolDest = activeEvent.AudioEvent.VolumeCenter;
activeEvent.AltVolDest = 0f;
activeEvent.CurrentFade = audioContainer.CrossfadeTime;
float waitTime = (tempClip.Sound.length / emitter.pitch) - activeEvent.AudioEvent.Container.CrossfadeTime;
// Ignore clip delay since container is continuous.
PlayClipAndGetTime(tempClip, emitter, activeEvent);
activeEvent.ActiveTime = InfiniteLoop;
StartCoroutine(RecordEventInstanceCoroutine(activeEvent));
audioContainer.CurrentClip++;
if (audioContainer.CurrentClip >= audioContainer.Sounds.Length)
{
audioContainer.CurrentClip = 0;
}
StartCoroutine(ContinueRandomContainerCoroutine(audioContainer, activeEvent, waitTime));
}